package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;

import org.springframework.web.bind.annotation.*;


import javax.servlet.http.HttpSession;
import java.time.LocalDateTime;


@RestController//
@RequestMapping("/employee")
@Slf4j
public class EmployeeController {//

    @Autowired
    private EmployeeService employeeService;

    //session 登录成功后,存储登录用户信息
    //employee 接收页面发送的登录信息
    @PostMapping("/login")
   public R<Employee> login(HttpSession session,@RequestBody Employee employee){
        //将页面提交的密码进行md5加密处理,得到加密后的字符串
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //根据页面提交的用户名和密码查询数据库中员工数据信息,判断用户是否存在
        LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
        lqw.eq(Employee::getUsername,employee.getUsername());
        lqw.eq(Employee::getPassword,password);
        Employee emp = employeeService.getOne(lqw);

        if(emp == null){
            return R.error("登陆失败");
        }
        if(! password.equals(emp.getPassword())){
            return R.error("账号或密码错误");
        }
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }
        session.setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    //员工退出
    @PostMapping("/logout")//指定更明确的子路径
    public R<String> logout(HttpSession session){
        //清理session中保存的当前登录员工的id
       session.removeAttribute("emp");
        return R.success("退出成功");
    }

    //新增员工
    @PostMapping
    public R<String> save(HttpSession session,@RequestBody Employee employee){
        log.info("新增员工信息: {}",employee.toString());

        //设置初始密码 123456
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());//当前时间
//        employee.setUpdateTime(LocalDateTime.now());//修改后时间
//
//        //获得当前用户的id
//        Long empId = (Long) session.getAttribute("employee");

//        employee.setCreateUser(empId);//获取当前id
//        employee.setUpdateUser(empId);//获取修改后的id

        employeeService.save(employee);
        return R.success("新增员工成功");//返回到浏览器显示的数据
    }

    //员工信息分页查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page = {},pageSize = {},name = {}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件      条件不为空                     条件判断
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    //修改员工信息
    @PutMapping
    public R<String> update(HttpSession session,@RequestBody Employee employee){
        log.info(employee.toString());

        //设置参数
//        Long empId = (Long)session.getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());//修改时间
//        employee.setUpdateUser(empId);//修改人

        employeeService.updateById(employee);//执行方法
        return R.success("员工信息修改成功");
    }

    //根据id查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){//@P... 获取路径参数
        log.info("根据id查询员工信息");
        Employee employee = employeeService.getById(id);
        if(employee != null){
            return R.success(employee);
        }
        return R.error("没有查询到员工信息");
    }

//   @PutMapping
//   public R<String> updateById(HttpSession session,@RequestBody Employee employee){
//        log.info(employee.toString());
//
//        Long empId = (Long) session.getAttribute("employee");
//
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
//        employeeService.updateById(employee);
//
//        return R.success("员工信息修改成功");
//    }
}
